dotnet
diff --git a/‎src/VisualStudio/CSharp/Test/ProjectSystemShim/CPS/SourceFileHandlingTests.cs‎
Lines changed: 6 additions & 6 deletions b/‎src/VisualStudio/CSharp/Test/ProjectSystemShim/CPS/SourceFileHandlingTests.cs‎
Lines changed: 6 additions & 6 deletions
diff --git a/‎src/VisualStudio/Core/Def/Implementation/ProjectSystem/CPS/IWorkspaceProjectContext.cs‎
Lines changed: 3 additions & 0 deletions b/‎src/VisualStudio/Core/Def/Implementation/ProjectSystem/CPS/IWorkspaceProjectContext.cs‎
Lines changed: 3 additions & 0 deletions
@@ -144,7 +144,7 @@ public async Task ReorderSourceFilesBatch_CPS()
 
             project.ReorderSourceFiles(new[] { sourceFileFullPath5, sourceFileFullPath3, sourceFileFullPath1 });
 
-            project.EndBatch();
+            await project.EndBatchAsync();
 
             var documents = GetCurrentDocuments().ToArray();
 
@@ -196,7 +196,7 @@ public async Task ReorderSourceFilesBatchWithReAdding_CPS()
 
             project.ReorderSourceFiles(new[] { sourceFileFullPath5, sourceFileFullPath4, sourceFileFullPath3, sourceFileFullPath2, sourceFileFullPath1 });
 
-            project.EndBatch();
+            await project.EndBatchAsync();
 
             var documents = GetCurrentDocuments().ToArray();
 
@@ -234,7 +234,7 @@ public async Task ReorderSourceFilesBatchAddAfterReorder_CPS()
             project.AddSourceFile(sourceFileFullPath4);
             project.AddSourceFile(sourceFileFullPath5);
 
-            project.EndBatch();
+            await project.EndBatchAsync();
 
             project.ReorderSourceFiles(new[] { sourceFileFullPath5, sourceFileFullPath4, sourceFileFullPath3, sourceFileFullPath2, sourceFileFullPath1 });
 
@@ -277,7 +277,7 @@ public async Task ReorderSourceFilesBatchRemoveAfterReorder_CPS()
             project.RemoveSourceFile(sourceFileFullPath4);
             project.RemoveSourceFile(sourceFileFullPath5);
 
-            project.EndBatch();
+            await project.EndBatchAsync();
 
             project.ReorderSourceFiles(new[] { sourceFileFullPath2, sourceFileFullPath1 });
 
@@ -371,7 +371,7 @@ public async Task ReorderSourceFilesBatchExceptions_CPS()
             Assert.Throws<ArgumentOutOfRangeException>(() => project.ReorderSourceFiles(new List<string>()));
             Assert.Throws<ArgumentOutOfRangeException>(() => project.ReorderSourceFiles(null));
 
-            project.EndBatch();
+            await project.EndBatchAsync();
         }
 
         [WpfFact]
@@ -395,7 +395,7 @@ public async Task ReorderSourceFilesBatchExceptionRemoveFile_CPS()
             project.RemoveSourceFile(sourceFileFullPath2);
             Assert.Throws<InvalidOperationException>(() => project.ReorderSourceFiles(new[] { sourceFileFullPath2 }));
 
-            project.EndBatch();
+            await project.EndBatchAsync();
 
             var documents = GetCurrentDocuments().ToArray();
 
 
@@ -7,6 +7,7 @@
 using System;
 using System.Collections.Generic;
 using System.Collections.Immutable;
+using System.Threading.Tasks;
 using Microsoft.CodeAnalysis;
 
 namespace Microsoft.VisualStudio.LanguageServices.ProjectSystem
@@ -75,7 +76,9 @@ internal interface IWorkspaceProjectContext : IDisposable
         void SetRuleSetFile(string filePath);
 
         void StartBatch();
+        [Obsolete($"Use {nameof(EndBatchAsync)}.")]
         void EndBatch();
+        ValueTask EndBatchAsync();
 
         void ReorderSourceFiles(IEnumerable<string> filePaths);
     }